Die tool for bending of plate bending machine
By designing a mold tool for bending pipes for plate rolling machines, the problems of deformation and axial torsion of the semicircular tube during bending are solved, and efficient bending of the semicircular tube is achieved to form a complete ring shape.
Patent Information
- Application Number
- CN202421673554.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-16
AI Technical Summary
In the production of gasifier cooling rings, the semicircular tube is prone to deformation and axial twisting during bending, resulting in unsatisfactory bending effect and time-consuming and labor-intensive.
A mold tool for bending pipes of the plate rolling machine is designed. The mold tool is circular in shape as a whole, and there are bent clamping slots on the outer circumference surface along the circumferential direction. The cross-section of the clamping slots is semicircular arc-shaped, which is used to engage and fix the semicircular tube and is fixed by buckle connection to ensure that the semicircular tube does not deform or deflect during bending.
Through the use of mold tools, the semicircular tube can maintain its shape during bending, avoiding openings and axial twisting. After bending, the two ends of the semicircular tube can be aligned to form a complete ring shape, which improves bending efficiency and effect.
Smart Images
Figure CN222873085U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical processing, in particular to a mold tooling for a plate rolling machine bending pipe. Background Art
[0002] The gasifier is an important production device in the field of coal chemical industry. Ring plates are used in the production of gasifier quenching rings. The cross-section of the ring plate is semicircular. During the production process, the round tube needs to be cut into two semicircular parts along the axis, and then the semicircular tube needs to be bent using a plate rolling machine. Since the semicircular tube becomes an open structure after being cut, the semicircular tube body of the semicircular tube will be deformed during the bending process, and the opening will become larger and cannot be used. Moreover, in the process of bending directly using a plate rolling machine, the tube body will undergo axial torsion. After bending, the two ends of the semicircular tube cannot be aligned, and the semicircular tube cannot be bent into a complete circular ring. Continuous manual correction is required, which is time-consuming and labor-intensive, and the bending effect is not ideal. Summary of the invention
[0003] In order to solve the problems in the prior art, the utility model patent designs a mold tooling for bending pipes of a plate rolling machine to solve the problems of poor bending effect, time-consuming and labor-intensive existing semi-circular pipes.
[0004] The technical solution adopted by the utility model is that the mold tooling is in an annular shape as a whole, a bending groove is opened on the outer circumferential surface of the mold tooling along the circumferential direction, the cross-section of the bending groove is in a smooth semicircular arc shape, and the radius of the bending groove is the same as the radius of the bent tube body.
[0005] Furthermore, two bending grooves are axially arranged side by side on the outer circumferential surface of the mold tooling.
[0006] Furthermore, the mold tooling is assembled by butting two semicircular ring-shaped parts, namely a first semicircular ring and a second semicircular ring.
[0007] Furthermore, buckles are provided on both sides of the joints between the first semicircle ring and the second semicircle to connect and fix them.
[0008] Furthermore, grooves are respectively provided in the middle of the two end surfaces of the first semicircular ring, and correspondingly, protrusions are respectively provided in the middle of the two end surfaces of the second semicircular ring. When the first semicircular ring is connected with the second semicircular ring, the protrusions at both ends are respectively engaged in the grooves.
[0009] Compared with the prior art, the improvement of the mold tooling for bending tubes of a plate rolling machine designed by the utility model patent lies in that: when the mold tooling is used, it is directly mounted and fixed on the roller of the plate rolling machine, and the bending groove on its outer circumference is used to clamp and fix the semicircular tube cut along the axis. During the bending process, the bending groove can limit the semicircular tube to prevent the opening of the semicircular tube from expanding and deforming during the bending process, and can effectively prevent the semicircular tube from axial deflection. After the bending is completed, the two ends of the semicircular tube can be aligned and bent into a complete circular ring. At the same time, two bending grooves are arranged side by side on the mold tooling, which can complete the bending of the two cut semicircular tubes at the same time, improving the processing efficiency.
[0010] The mold tooling is assembled by butting two semicircular rings, which is more flexible in application. Corresponding grooves and protrusions are provided on the butt surfaces of the two semicircular rings to facilitate quick alignment between the two. After alignment, they are connected and fixed by buckles, which is convenient for connection. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the front view of the mold tooling for bending pipes of a plate rolling machine.
[0012] Figure 2 It is a schematic diagram of the structure of the first semicircle.
[0013] Figure 3 It is a schematic diagram of the structure of the second semicircle.
[0014] Figure 4 It is a schematic diagram of the structure after the first semicircle ring and the second semicircle ring are aligned.
[0015] In the figure, 1 is a first semicircular ring, 2 is a second semicircular ring, 3 is a bent slot, 4 is a buckle, 5 is a groove, and 6 is a protrusion. DETAILED DESCRIPTION
[0016] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. The technical solutions in the embodiments of the utility model are clearly and completely described, and the described embodiments are only embodiments of a part of the invention, not all of it. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.
[0017] like Figure 1 , 2As shown in Figures 3 and 4, the utility model patent designs an embodiment of a mold tooling for bending a tube of a plate rolling machine. In this embodiment, the mold tooling is in a circular ring shape as a whole, and the mold tooling is assembled by butting two semi-circular ring-shaped parts, namely a first semi-circular ring 1 and a second semi-circular ring 2. Two bending grooves 3 are axially arranged side by side on the outer circumferential surface of the mold tooling formed by butting the two parts. The bending grooves 3 are arranged along the circumferential direction of the outer circumferential surface of the mold tooling, and the cross-section of the bending grooves 3 is a smooth semicircular arc.
[0018] The first semicircle ring 1 and the second semicircle 2 constituting the mold tooling are respectively provided with buckles 4 at both ends of the butt joint to connect and fix. The buckle 4 can be made of existing technology, and the buckle chain and the connecting nose constituting the buckle 4 are respectively welded and fixed on the two semicircle rings.
[0019] In addition, to facilitate the docking of the two semicircular rings, the middle of the two end faces of the first semicircular ring 1 is respectively provided with a groove 5, and the middle of the two end faces of the corresponding second semicircular ring 2 is respectively provided with a protrusion 6. When the first semicircular ring 1 is docked with the second semicircular ring 2, the protrusions 6 at both ends of the second semicircular ring 2 are respectively engaged in the grooves 5 at both ends of the first semicircular ring 1. The groove 5 and the protrusion 6 are respectively in a flat trapezoidal shape. Moreover, the structures at both ends of the first semicircular ring 1 are the same, and the structures at both ends of the second semicircular ring 2 are also the same. When the two are docked, there is no difference between the front and the back.
[0020] When the mold tooling for bending a plate rolling machine disclosed in the utility model patent is used, the mold tooling is fixed on the topmost roller of the three rollers arranged in a herringbone shape of the plate rolling machine. After the two semicircular rings are aligned on the rollers, they are quickly connected and fixed by the buckles on both sides. The round tube is cut into two semicircular tubes along the axis, and the two semicircular tubes are respectively inserted into the two bending grooves of the mold tooling. It should be noted that a mold tooling with a bending groove with the same diameter as the semicircular tube should be used for bending. In other words, after the semicircular tube is inserted into the bending groove, it must be flush with the outer circumference of the mold tooling. After the two semicircular tubes are inserted, the plate rolling machine is started for winding and bending.
[0021] The above contents are only preferred embodiments of the present invention and cannot be used to limit the scope of implementation of the present invention. That is, any simple equivalent changes and modifications made according to the claims and description of the present invention are still within the scope of the present invention.
Claims
1. A die tooling for bending a plate rolling machine, characterized in that: The mold tooling is in an annular shape as a whole, and a bending groove is opened on the outer circumferential surface of the mold tooling along the circumferential direction. The cross-section of the bending groove is a smooth semicircular arc, and the radius of the bending groove is the same as the radius of the bent tube body.
2. The mold tooling for bending a plate rolling machine according to claim 1 is characterized in that: Two bending grooves are axially arranged side by side on the outer circumferential surface of the mold tooling.
3. The mold tooling for bending a plate rolling machine according to claim 2 is characterized in that: The mold tooling is formed by butting and assembling two semicircular ring parts, namely a first semicircular ring and a second semicircular ring.
4. The mold tooling for bending a plate rolling machine according to claim 3 is characterized in that: The two sides of the joints between the first semicircle ring and the second semicircle are respectively provided with buckles for connection and fixing.
5. The mold tooling for bending a plate rolling machine according to claim 4 is characterized in that: The middle parts of the two end surfaces of the first semicircular ring are respectively provided with grooves, and the middle parts of the two end surfaces of the corresponding second semicircular ring are respectively provided with protrusions. When the first semicircular ring is connected with the second semicircular ring, the protrusions at both ends are respectively engaged in the grooves.